Accident · 2023-10-04
What the record says
- Event date
- 2023-10-04
- Event type
- Accident
- Highest injury level
- No injuries
- Aircraft
- BOEING 757-236 (N977FD)
- Operating rule
- Part 121
- Operator
- FEDERAL EXPRESS CORPORATION Operator named in NTSB report
- Operated by (per NTSB report)
- FEDERAL EXPRESS CORP
Probable cause
The failure of the alternate gear extension system, which prevented the landing gear from being lowered. The cause of the system failure was a broken wire, due to tensile overload, between the alternate gear extend switch and the alternate extension power pack (AEPP), preventing the AEPP from energizing and supplying hydraulic fluid to the door lock release actuators for the nose landing gear and main landing gear. Contributing to the accident was the loss of the left hydraulic system due to a ruptured left main gear door actuator hose from fatigue, which prevented normal landing gear operation.
Source: NTSB case DCA24FA002Flight crew
Certification and experience as recorded in the NTSB accident database for this event. The NTSB records these facts about the crew's flying history; GroundCheck shows them as filed, without names or identities.
| Role | Certificate | Instrument rating | Age | Medical | Flight hours |
|---|---|---|---|---|---|
| Pilot pilot flying | Airline transport pilot | Airplane | 41 | Class 1 (2023-08-14) | 393 in this make/model |
| Co-pilot | Airline transport pilot | Airplane | 53 | Class 1 (2023-05-22) | 1,651 in this make/model |
| Pilot-rated passenger | Airline transport pilot | — | — | — | — |
Facts as the NTSB records them — GroundCheck adds no judgement. Preliminary records may be revised as the investigation proceeds.